What this tool is for
Text-on-image legibility
Preview whether text holds up over an image. The aim is a useful result without making you learn a full piece of software first.
Free · No sign-up · PrivateType, Layout & Effects
Can people read this text on the image?
Check the centre-area brightness and get a fast starting recommendation for dark or light text.
1 Choose2 Adjust3 See answer
Before you finish
A quick check makes a better result.
OutMonkey is built to be simple enough for someone doing this once and useful enough for someone who does it every day.
Good to know
Treat the maths as a starting point.
Look at the result at the size it will really be used. Fonts have different proportions, so spacing that is mathematically neat can still look too tight or too loose.
If the result is for someone else, open it once as they would see it. That simple check catches a surprising number of tiny mistakes.
In plain English
You do not need to be an expert.
Designers can use the numbers as a fast baseline. Everyone else can simply compare the previews and choose the version that is easiest to read and looks balanced.
Type maths gives you structure; the final judgment should still be optical.
File size & formats
Big images use more memory than their file size suggests.
What can I use?
JPG, PNG and WebP are the safest choices. Other image formats work when your browser can decode them.
Is there a size limit?
There is no extra OutMonkey upload-size cap in the browser interface. Very high-resolution images can still hit your browser or device memory limit, especially when enlarging them.
If the file is huge
If an enormous image will not process, use a smaller copy or reduce its pixel dimensions first. Keep the original untouched.